Geospatial Assessment of Hydropower Potential
Summary
The geospatial assessment of hydropower potential leverages spatial data and analytical tools to evaluate the capacity of rivers and watersheds for energy generation. By integrating topographical information, hydrological records and environmental constraints within Geographic Information Systems (GIS), researchers map out river gradients, discharge regimes and site accessibility at varying resolutions. This approach enables the quantification of theoretical, technical and sustainable hydropower potential across large river basins and remote regions, accounting systematically for socio-ecological and infrastructural factors. Beyond mere estimation of energy yield, geospatial frameworks guide the identification of optimal locations for hydropower installations—particularly run-of-river and small-scale schemes—while balancing water-food-energy nexus considerations, environmental impacts and geo-hazard risks. Recent advances have refined spatial models to include multi-criteria decision analysis, cost-minimisation algorithms and finer-scale digital elevation models, thereby improving accuracy in delineating viable sites and predicting energy output under climate variability scenarios. The global significance of such assessments is underscored by accelerated demand for renewable energy and the need for equitable access in energy-poor regions. Geospatial assessment thus informs policy, planning and investment decisions, promoting sustainable hydropower development that aligns with broader environmental and socio-economic objectives.
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Geospatial Assessment of Hydropower Potential publication trend
The graph below shows the total number of articles in geospatial assessment of hydropower potential across all publications each year (not limited to Nature Index journals).
Technical terms
Geographic Information System (GIS): A computer-based tool for capturing, storing, analysing and visualising spatial data related to earth’s surface features and processes.
Run-of-River Hydropower: A form of hydroelectric generation that harnesses the natural flow and gradient of a river without large storage reservoirs.
Digital Elevation Model (DEM): A digital representation of terrain elevations used to derive slope, flow direction and watershed boundaries.
Soil and Water Assessment Tool (SWAT): A hydrological model that simulates land-surface processes and streamflow to predict water availability for various uses.
Sustainable Hydropower Potential: The portion of theoretical or technical hydropower capacity that remains feasible when accounting for environmental, social and economic constraints.
References
- From theoretical to sustainable potential for run-of-river hydropower development in the upper Indus basin. Applied Energy (2024).
- A Geospatial Assessment of Small-Scale Hydropower Potential in Sub-Saharan Africa. Energies (2018).
- Assessing the Hydropower Potential Using Hydrological Models and Geospatial Tools in the White Bandama Watershed (Côte d'Ivoire, West Africa). Frontiers in Water (2022).
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